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Background: Craniofacial microsomia (CM) is characterized by changes in the first and second branchial arches. It is a clinical condition whose etiology is still uncertain, but studies have shown that genetic, nutritional, and environmental factors can result in disorders of blastogenesis of the branchial arches. This study evaluates gestational aspects, focusing on possible risk factors associated with CM. Methods: This is a case–control study conducted with patients monitored at a medical genetics service and compared to a control group of patients without evidence of malformations, born in a mother and child hospital, both located in Porto Alegre, Southern Brazil. Mothers' data were obtained using questionnaires and by reviewing medical records. The sample consisted of 43 patients with CM (cases) and 129 patients without evidence of malformations (controls), paired by sex, totaling three controls for each case. Data analysis was performed using the two‐tailed Fisher's exact test, Pearson's chi‐square test, and the t‐test. Results: We identified several factors associated with the development of CM, including the use of abortion methods by the mothers of these babies (p =.001), maternal diabetes (p =.009), advanced maternal age (p =.035), and a history of vaginal bleeding (p <.001). Furthermore, these patients exhibited a tendency to be born prematurely (p =.027), with low birth weight (p =.007), and lower Apgar scores (p =.003) when compared to healthy infants. Using a multivariate model, the use of abortion methods (p =.003) and vaginal bleeding (p =.032) remained independently associated with craniofacial microsomia. Conclusions: We have identified several risk factors for the development of CM, including a propensity for premature birth, low birth weight, and respiratory difficulties. Additionally, women of advanced maternal age and/or those who used abortion methods and/or have diabetes have a higher risk of giving birth to a baby with CM. This information can be valuable in clinical practice, especially for the prevention of future cases. [ABSTRACT FROM AUTHOR]

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Background There are few studies assessing the birth measures of patients with congenital heart disease (CHD). Our aim to evaluate their progression and impact over the outcome. Methods The cases consisted of patients with CHD during their first hospitalization in a reference cardiac and pediatric intensive care unit (ICU) from Southern Brazil. Controls were composed of patients with no clinical evidence of CHD hospitalized soon after cases. The cases underwent high-resolution karyotype and fluorescence in situ hybridization (FISH) for 22q11 microdeletion. We analyzed birth weight, length and head circumference of patients of both groups. For CHD patients, we evaluated their progression and impact until hospitalization at ICU. Results Our sample was composed of 198 cases and controls. We observe a difference in birth weight of CHD patients only in relation to general population. There was a significant increase in children with CHD and weight below the lower limit from birth until the hospitalization at ICU, and this occurred more in those without complex CHD. Syndromic patients and with an extracardiac malformation also presented a greater difficulty to maintain not only the weight but also the length/height until the hospitalization. Individuals with weight below the lower limit at hospitalization who died had a tendency to present longer stay at ICU. Conclusions Some CHD patients, especially without complex defects, and with syndromic aspect and a major extracardiac malformation, present a higher difficult to maintain their weight and growth, and, therefore, may be at risk and should be more closely monitored. [ABSTRACT FROM AUTHOR]